Many people have been asking "where is JD?" or "where is Brewskie?".
The doomers would gleefully answer with "they have accepted that we're doomed and are now hunkering down in their doomstead and manically counting their gold eagles and MRE while calculating how many zombies they can kill per scarce and very valuable round of ammo.
Personally I reckon JD is just bored with the whole peak oil shtick. He has better things to do with his time than argue with fanatics whose real position stems from a belief that modern civilisation is evil and clutch at any available straw to argue that it *must* collapse.
In the case of Brewskie, he's gone back to school and is having fun and is spending his money on beer and pizza rather than saving for a doomstead.